I just got a Nova 700 in "pretty darn good" condition and I would like to keep it that way. I know there is a myth going around about how (in general) a low pressure compressed air tank is better for the regulator on most guns, than the high pressure output tanks. I don't think this is true and I know the manual for the Nova just says don't exceed 900 psi, but when I bought my Nova, the previous owner told me to use a low pressure output tank. I really don't want to have to buy another tank or reg for one, so... Am I okay at 850 psi use or should I use a 450 psi output tank to make sure my nova stays working for good while?